From 3feaf852afae780588c495a865e38998c672e417 Mon Sep 17 00:00:00 2001
From: Alexey Khit <alexey.khit@gmail.com>
Date: Mon, 17 Apr 2023 17:02:24 +0300
Subject: [PATCH] Fix panic for wrong ffmpeg device in linux

---
 cmd/ffmpeg/device/device_linux.go | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/cmd/ffmpeg/device/device_linux.go b/cmd/ffmpeg/device/device_linux.go
index 3ce29a86..b9aa6b64 100644
--- a/cmd/ffmpeg/device/device_linux.go
+++ b/cmd/ffmpeg/device/device_linux.go
@@ -12,8 +12,10 @@ import (
 const deviceInputPrefix = "-f v4l2"
 
 func deviceInputSuffix(videoIdx, audioIdx int) string {
-	video := findMedia(core.KindVideo, videoIdx)
-	return video.ID
+	if video := findMedia(core.KindVideo, videoIdx); video != nil {
+		return video.ID
+	}
+	return ""
 }
 
 func loadMedias() {